Games like Red Green Donkey
Games like Red Green Donkey include Escape From Duckov, The Binding of Isaac: Rebirth, Enter the Gungeon, UnderMine, and Night Raider. We matched them by the tags players give Red Green Donkey on Steam (Adventure, Top-Down Shooter, Dungeon Crawler, Pixel Graphics, and Minimalist): closest matches first, and among equally close ones the better-known games.

Escape From Duckov
Shared: Adventure · Top-Down Shooter · Shooter

The Binding of Isaac: Rebirth
Shared: Pixel Graphics · Dungeon Crawler · Indie

Enter the Gungeon
Shared: Pixel Graphics · Dungeon Crawler · Indie

UnderMine
Shared: Dungeon Crawler · Pixel Graphics · Adventure

Night Raider
Shared: Adventure · Top-Down Shooter · Pixel Graphics

Noita
Shared: Pixel Graphics · Dungeon Crawler · Indie

Minit
Shared: Adventure · Minimalist · Pixel Graphics

Moonlighter
Shared: Pixel Graphics · Dungeon Crawler · Adventure

REMNANT II®
Shared: Adventure · Third-Person Shooter · Shooter

INMOST
Shared: Adventure · Pixel Graphics · Indie

Hotline Miami
Shared: Pixel Graphics · Indie · Top-Down

Hyper Light Drifter
Shared: Pixel Graphics · Adventure · Indie

To the Moon
Shared: Adventure · Pixel Graphics · Indie

Exit the Gungeon
Shared: Adventure · Pixel Graphics · Indie

The Last Stand: Aftermath
Shared: Top-Down Shooter · Adventure · Shooter

Tiny Rogues
Shared: Top-Down Shooter · Dungeon Crawler · Adventure

LIMBO
Shared: Adventure · Dark · Indie

DISTRAINT: Deluxe Edition
Shared: Adventure · Pixel Graphics · Indie

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Top-Down Shooter · Top-Down

Five Nights at Freddy's: Into the Pit
Shared: Adventure · Pixel Graphics · Singleplayer

ZERO Sievert
Shared: Pixel Graphics · Shooter · Adventure

Hammerwatch
Shared: Dungeon Crawler · Pixel Graphics · Adventure

Tomb Raider Game of the Year
Shared: Adventure · Third-Person Shooter · Singleplayer

DAVE THE DIVER
Shared: Adventure · Pixel Graphics · Singleplayer